/* <dict> .image3 - */
private int
zimage3(i_ctx_t *i_ctx_p)
{
os_ptr op = osp;
gs_image3_t image;
int interleave_type;
ref *pDataDict;
ref *pMaskDict;
image_params ip_data, ip_mask;
int ignored;
int code, mcode;
check_type(*op, t_dictionary);
check_dict_read(*op);
if ((code = dict_int_param(op, "InterleaveType", 1, 3, -1,
&interleave_type)) < 0
)
return code;
gs_image3_t_init(&image, NULL, interleave_type);
if (dict_find_string(op, "DataDict", &pDataDict) <= 0 ||
dict_find_string(op, "MaskDict", &pMaskDict) <= 0
)
return_error(e_rangecheck);
if ((code = pixel_image_params(i_ctx_p, pDataDict,
(gs_pixel_image_t *)&image, &ip_data,
12, false)) < 0 ||
(mcode = code = data_image_params(imemory, pMaskDict, &image.MaskDict,
&ip_mask, false, 1, 12, false)) < 0 ||
(code = dict_int_param(pDataDict, "ImageType", 1, 1, 0, &ignored)) < 0 ||
(code = dict_int_param(pMaskDict, "ImageType", 1, 1, 0, &ignored)) < 0
)
return code;
/*
* MaskDict must have a DataSource iff InterleaveType == 3.
*/
if ((ip_data.MultipleDataSources && interleave_type != 3) ||
ip_mask.MultipleDataSources ||
mcode != (image.InterleaveType != 3)
)
return_error(e_rangecheck);
if (image.InterleaveType == 3) {
/* Insert the mask DataSource before the data DataSources. */
memmove(&ip_data.DataSource[1], &ip_data.DataSource[0],
(countof(ip_data.DataSource) - 1) *
sizeof(ip_data.DataSource[0]));
ip_data.DataSource[0] = ip_mask.DataSource[0];
}
return zimage_setup(i_ctx_p, (gs_pixel_image_t *)&image,
&ip_data.DataSource[0],
image.CombineWithColor, 1);
}
/* <dict> .image4 - */
static int
zimage4(i_ctx_t *i_ctx_p)
{
os_ptr op = osp;
gs_image4_t image;
image_params ip;
int num_components =
gs_color_space_num_components(gs_currentcolorspace(igs));
int colors[countof(image.MaskColor)];
int code;
int i;
gs_image4_t_init(&image, NULL);
code = pixel_image_params(i_ctx_p, op, (gs_pixel_image_t *)&image, &ip,
12, false, gs_currentcolorspace(igs));
if (code < 0)
return code;
code = dict_int_array_check_param(imemory, op, "MaskColor",
num_components * 2, colors, 0, e_rangecheck);
/* Clamp the color values to the unsigned range. */
if (code == num_components) {
image.MaskColor_is_range = false;
for (i = 0; i < code; ++i)
image.MaskColor[i] = (colors[i] < 0 ? ~(uint)0 : colors[i]);
}
else if (code == num_components * 2) {
image.MaskColor_is_range = true;
for (i = 0; i < code; i += 2) {
if (colors[i+1] < 0) /* no match possible */
image.MaskColor[i] = 1, image.MaskColor[i+1] = 0;
else {
image.MaskColor[i+1] = colors[i+1];
image.MaskColor[i] = max(colors[i], 0);
}
}
} else
return_error(code < 0 ? code : gs_note_error(e_rangecheck));
return zimage_setup(i_ctx_p, (gs_pixel_image_t *)&image, &ip.DataSource[0],
image.CombineWithColor, 1);
}
/* Common code for .image1 and .alphaimage operators */
int
image1_setup(i_ctx_t * i_ctx_p, bool has_alpha)
{
os_ptr op = osp;
gs_image_t image;
image_params ip;
int code;
gs_color_space *csp = gs_currentcolorspace(igs);
extern bool CPSI_mode;
/* Adobe interpreters accept sampled images when the current color
* space is a pattern color space using the base color space instead
* of the pattern space. CET 12-07a-12
* If all conditions are not met the pattern color space goes through
* triggering a rangecheck error.
*/
if (CPSI_mode && gs_color_space_num_components(csp) < 1) {
gs_color_space *bsp = csp->base_space;
if (bsp)
csp = bsp;
}
gs_image_t_init(&image, csp);
code = pixel_image_params( i_ctx_p,
op,
(gs_pixel_image_t *)&image,
&ip,
(level2_enabled ? 16 : 8),
has_alpha, csp);
if (code < 0)
return code;
image.Alpha = (has_alpha ? gs_image_alpha_last : gs_image_alpha_none);
return zimage_setup( i_ctx_p,
(gs_pixel_image_t *)&image,
&ip.DataSource[0],
image.CombineWithColor,
1 );
}
